A Treatise On Some of the Insects Injurious to Vegetation
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247 the common potato plant-lice, they may always be found. It is amusing, however, that both of these kinds of insects should have been charged with the same fault, one having no more to do with producing the disease than the other.
There are some lady-birds, of a very small size, and black- ish color, sparingly clothed with short hairs, and sometimes with a yellow spot at the end of the wing-covers, whose young are clothed with short tufts or flakes of the most delicate white down. These inse...cts belong to the genus Scymnus, which means a lion's whelp, and they well merit such a name, for their young, in proportion to their size, are as sanguinary and ferocious as the most savage beasts of prey. I have often seen one of these little tufted animals preying upon plant-lice, catching and devouring, with the greatest ease, lice nearly as large as its own body, one after another, in rapid succession, without apparently satiating its hunger or diminishing its activity.
The second kind of plant-lice destroyers are the young of the golden-eyed lace- winged fly, Chrysopa perla lz (Plate III.
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To quickly assess the difficulty of the text, read a short excerpt:
247 the common potato plant-lice, they may always be found. It is amusing, however, that both of these kinds of insects should have been charged with the same fault, one having no more to do with producing the disease than the other.
There are some lady-birds, of a very small size, and black- ish color, sparingly clothed with short hairs, and sometimes with a yellow spot at the end of the wing-covers, whose young are clothed with short tufts or flakes of the most delicate white down. These inse...cts belong to the genus Scymnus, which means a lion's whelp, and they well merit such a name, for their young, in proportion to their size, are as sanguinary and ferocious as the most savage beasts of prey. I have often seen one of these little tufted animals preying upon plant-lice, catching and devouring, with the greatest ease, lice nearly as large as its own body, one after another, in rapid succession, without apparently satiating its hunger or diminishing its activity.
The second kind of plant-lice destroyers are the young of the golden-eyed lace- winged fly, Chrysopa perla lz (Plate III.
What to read after A Treatise On Some of the Insects Injurious to Vegetation?
You can find similar books in the "Read Also" column, or choose other free books by Thaddeus William Harris to read onlineMoreLess
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